Control device and control method
US10333418B2 · kind B2 · utility
5Cited by
4References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2018 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Apr 4, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control device applied to a flyback converter including an auxiliary switch includes: an output voltage integrator, configured to integrate an output voltage of the flyback converter to obtain an amplitude of a negative magnetizing current of the flyback converter; and a comparator controller, configured to compare the obtained amplitude of the negative magnetizing current with a reference value, and turn off the auxiliary switch according to a comparison result. According to the present disclosure, it is able to achieve zero voltage switching of a primary-side switch of the flyback converter with variable outputs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.